RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 14:38:11 +00:00
Code Issues Activity Actions

WindowServer: Use CProcessStatisticsReader in WSCPUMonitor.

Browse source
This commit is contained in:
Andreas Kling 2019-07-10 15:18:42 +02:00
parent ea6363c540
commit 64d9b43734
2 changed files with 8 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

23
Servers/WindowServer/WSCPUMonitor.cpp
View file

@ -1,6 +1,7 @@
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/JsonValue.h>
#include <LibCore/CProcessStatisticsReader.h>
#include <WindowServer/WSCPUMonitor.h>
#include <WindowServer/WSEventLoop.h>
#include <WindowServer/WSWindowManager.h>
@ -8,11 +9,7 @@
#include <unistd.h>
WSCPUMonitor::WSCPUMonitor()
: m_proc_all("/proc/all")
{
if (!m_proc_all.open(CIODevice::OpenMode::ReadOnly))
ASSERT_NOT_REACHED();
create_thread([](void* context) -> int {
auto& monitor = *(WSCPUMonitor*)context;
for (;;) {
@ -39,18 +36,14 @@ void WSCPUMonitor::get_cpu_usage(unsigned& busy, unsigned& idle)
busy = 0;
idle = 0;
m_proc_all.seek(0);
auto file_contents = m_proc_all.read_all();
auto json = JsonValue::from_string({ file_contents.data(), file_contents.size() });
json.as_array().for_each([&](auto& value) {
const JsonObject& process_object = value.as_object();
pid_t pid = process_object.get("pid").to_u32();
unsigned nsched = process_object.get("times_scheduled").to_u32();
if (pid == 0)
idle += nsched;
auto all_processes = CProcessStatisticsReader::get_all();
for (auto& it : all_processes) {
if (it.value.pid == 0)
idle += it.value.nsched;
else
busy += nsched;
});
busy += it.value.nsched;
}
}
void WSCPUMonitor::paint(Painter& painter, const Rect& rect)